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Characterization of Elastic Modulus of Granular Materials in a New Designed Uniaxial Oedometric System 被引量:1
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作者 马沁巍 Yahya Sandali +4 位作者 张瑞楠 马方园 王洪涛 马少鹏 史庆藩 《Chinese Physics Letters》 SCIE CAS CSCD 2016年第3期118-122,共5页
A simple uniaxial oedometric system is developed to test the elastic modulus of granular materials. The stress- strain relationship is first measured under conditions of uniaxial compression with additional lateral st... A simple uniaxial oedometric system is developed to test the elastic modulus of granular materials. The stress- strain relationship is first measured under conditions of uniaxial compression with additional lateral stress and strain, then the elastic modulus of the material is determined by the linear fitting method. It is found that the modulus is positively correlated to the grain size and negatively correlated to the container size. Arching and dragging are revealed to be the mechanism of such correlations by using the digital image correlation method and the pressure film technology based on the statistical method. 展开更多
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